1188 - 1257 (69 years)
| Gilbert DE CLARE, Earl Of Gloucester And Hertford | |
| B: | 2 Sep 1243 |
| D: | 7 Dec 1299 |
| Monmouth Castle | |
| Joan "Of Acre", Princess Of England | |
| B: | 1272 |
| (Acre), Akko, Hazafon, Palestine | |
| M: | 1290 |
| D: | 23 Apr 1307 |
| , Clare, Suffolk, ENG | |
| Rohese DE CLARE | |
| B: | 1252 |
| D: | Aft 1316 |
| Roger DE MOWBRAY | |
| D: | Bef 1297 |
| Maud DE LACY | |
| B: | Abt 1223 |
| Lincoln, , ENG | |
| D: | Bef 1288 |
| Richard DE CLARE, Earl Of Gloucester And Hertford | |
| B: | 4 Aug 1222 |
| M: | Abt 25 Jan 1238 |
| D: | 15 Jul 1262 |
| Margaret DE QUINCY | |
| B: | 1208 |
| D: | Bef 30 Mar 1266 |
| Sir John DE LACY, Earl Of Lincoln | |
| M: | Bef 21 Jun 1221 |
| D: | 22 Jul 1240 |
|
| Robert DE QUINCY | |
| B: | 1188 |
| D: | Aug 1257 |
| London, Middlesex, ENG | |
| Hawise DE QUINCY | |
| B: | Abt 1250 |
| D: | Bef 27 Mar 1285 |
| Helen VERCH LLEWELLYN, Fawr Of Wales | |
| B: | 1 Nov 1207 |
| Gwynedd, , Wales | |
| D: | 24 Oct 1253 |
| Stevington, , ENG | |
